// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_GEOMETRY_SIZE_F_H_
#define UI_GFX_GEOMETRY_SIZE_F_H_

#include <string>

#include "base/compiler_specific.h"
#include "ui/gfx/geometry/size_base.h"
#include "ui/gfx/gfx_export.h"

namespace gfx {

// A floating version of gfx::Size.
class GFX_EXPORT SizeF : public SizeBase<SizeF, float> {
public:
    SizeF()
        : SizeBase<SizeF, float>(0, 0)
    {
    }
    SizeF(float width, float height)
        : SizeBase<SizeF, float>(width, height)
    {
    }
    ~SizeF() { }

    void Scale(float scale)
    {
        Scale(scale, scale);
    }

    void Scale(float x_scale, float y_scale)
    {
        SetSize(width() * x_scale, height() * y_scale);
    }

    std::string ToString() const;
};

inline bool operator==(const SizeF& lhs, const SizeF& rhs)
{
    return lhs.width() == rhs.width() && lhs.height() == rhs.height();
}

inline bool operator!=(const SizeF& lhs, const SizeF& rhs)
{
    return !(lhs == rhs);
}

GFX_EXPORT SizeF ScaleSize(const SizeF& p, float x_scale, float y_scale);

inline SizeF ScaleSize(const SizeF& p, float scale)
{
    return ScaleSize(p, scale, scale);
}

#if !defined(COMPILER_MSVC)
extern template class SizeBase<SizeF, float>;
#endif

} // namespace gfx

#endif // UI_GFX_GEOMETRY_SIZE_F_H_
